#!/usr/bin/env python
# -*- coding:utf-8 -*-
# @FileName :cp2_2.12.py
# @Time     :2023/7/10 18:30
# @Author   :Ash

if __name__ == "__main__":
    board = [['-'] * 3 for i in range(3)]
    print(board)
    board[1][2] = 'X'
    print(board)
